CF1759638557778-tsm20251004101907

WWW.RTSAK.COM - firststring.io

Search for IP or hostnames:

firststring.io checked at 2025-10-05T04:29:17.735Z 305ms 160/160/160 100% R:16

firststring.io

NSandy.ns.cloudflare.com
A2606:4700:58::adf5:3b65 🇺🇸 Cloudflare
PTRandy.ns.cloudflare.com
A2803:f800:50::6ca2:c165 🇨🇷 Cloudflare
PTRandy.ns.cloudflare.com
A2a06:98c1:50::ac40:2165 🇺🇸 Cloudflare
PTRandy.ns.cloudflare.com
A108.162.193.101🇺🇸 Cloudflare
PTRandy.ns.cloudflare.com
A172.64.33.101🇺🇸 Cloudflare
PTRandy.ns.cloudflare.com
A173.245.59.101🇺🇸 Cloudflare
PTRandy.ns.cloudflare.com
NSivy.ns.cloudflare.com
A2606:4700:50::adf5:3a78 🇺🇸 Cloudflare
PTRivy.ns.cloudflare.com
A2803:f800:50::6ca2:c078 🇨🇷 Cloudflare
PTRivy.ns.cloudflare.com
A2a06:98c1:50::ac40:2078 🇺🇸 Cloudflare
PTRivy.ns.cloudflare.com
A108.162.192.120🇺🇸 Cloudflare
PTRivy.ns.cloudflare.com
A172.64.32.120🇺🇸 Cloudflare
PTRivy.ns.cloudflare.com
A173.245.58.120🇺🇸 Cloudflare
PTRivy.ns.cloudflare.com
MXaspmx.l.google.com
A2607:f8b0:4004:c07::1a 🇺🇸 Google
PTRbc-in-f26.1e100.net
A142.251.167.27🇺🇸 Google
PTRww-in-f27.1e100.net
MXruu4k6y322i2zqqkdsznn7rdyljdhxsudvwowaa7pbood2igvqca.mx-verification.google.com
MXalt1.aspmx.l.google.com
A2a00:1450:400b:c02::1a 🇮🇪 Google
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google
PTRdj-in-f27.1e100.net
MXalt2.aspmx.l.google.com
A2a00:1450:400c:c00::1b 🇧🇪 Google
PTRws-in-f27.1e100.net
PTRws-in-x1b.1e100.net
A173.194.76.27🇺🇸 Google
PTRws-in-f27.1e100.net
MXalt3.aspmx.l.google.com
A2a00:1450:4025:402::1b 🇳🇱 Google
PTRrb-in-f27.1e100.net
A142.250.102.26🇺🇸 Google
PTRrb-in-f26.1e100.net
MXalt4.aspmx.l.google.com
A2a00:1450:4013:c1e::1b 🇳🇱 Google
PTRyugrqzs-in-f27.1e100.net
A192.178.213.26🇺🇸 Google
PTRyugrqzs-in-f26.1e100.net
A199.16.172.120🇺🇸 Automattic
A199.16.173.5🇺🇸 Automattic

io

NSa0.nic.io
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io

Starts with same word

Starts similarily

AI analysis

firststring.io points to two IPs: 199.16.172.120 and 199.16.173.5.

Other host names, for instance karlenagency.com, library.uncg.edu, zacamesa.com, www.onotalake.com and careyandwalsh.com share IP numbers with firststring.io.

Two name servers andy.ns.cloudflare.com and ivy.ns.cloudflare.com are delegated to firststring.io.

firststring.io uses the same name server configuration as other domains, such as freecasinosonline.ca, allgirlmassage.net, massage-nuru.com, euphorbia.cz and cheating-sluts.com.

firststring.io at least partially shares name servers with other domains such as vlxx.love, odog.com, cafekartan.se, dewals.be and andew.uk.

these name servers are commonly used with the name servers kay.ns.cloudflare.com.

Host names with six IP numbers: Host name andy.ns.cloudflare.com points to 2606:4700:58::adf5:3b65, 2803:f800:50::6ca2:c165, 2a06:98c1:50::ac40:2165, 108.162.193.101, 172.64.33.101 and 173.245.59.101; host name ivy.ns.cloudflare.com points to 2606:4700:50::adf5:3a78, 2803:f800:50::6ca2:c078, 2a06:98c1:50::ac40:2078, 108.162.192.120, 172.64.32.120 and 173.245.58.120.

firststring.io is handled by six mail servers: aspmx.l.google.com, ruu4k6y322i2zqqkdsznn7rdyljdhxsudvwowaa7pbood2igvqca.mx-verification.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

firststring.io shares mail servers with other domains at least in part, for instance txdps-rp.com, rynt.com, marcoshernandez.com, bobalabo.com and brunomarc.com.

These mail servers are often used together with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Two IPs per host name:

aspmx.l.google.com points to: 2607:f8b0:4004:c07::1a and 142.251.167.27

alt1.aspmx.l.google.com points to: 2a00:1450:400b:c02::1a and 172.253.116.27

alt2.aspmx.l.google.com points to: 2a00:1450:400c:c00::1b and 173.194.76.27

alt3.aspmx.l.google.com points to: 2a00:1450:4025:402::1b and 142.250.102.26

alt4.aspmx.l.google.com points to: 2a00:1450:4013:c1e::1b and 192.178.213.26

Pattern: left IDs ascend by 9 (12, 21, 30, 39, 48); each pair of targets ascend by 9 (15/18, 24/27, 33/36, 42/45, 51/54)

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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XIRfDzK CF johedugfp 2025-10-05